Pascal (Lazarus/Delphi)

VoiceBase -- Hello World (Get the Media Collection Listing)

See more VoiceBase Examples

This example serves to both verify that your Bearer Token is valid by retrieving JSON that contains information about your media collection. Pascal (Lazarus/Delphi)

program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.Http,
  Chilkat.StringBuilder,
  Chilkat.DtObj,
  Chilkat.JsonObject,
  Chilkat.CkDateTime;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  accessToken: string;
  http: THttp;
  sbAuth: TStringBuilder;
  strJson: string;
  json: TJsonObject;
  dt: TCkDateTime;
  dtObj: TDtObj;
  mediaCount: Integer;
  i: Integer;
  dateCreated: string;
  localTime: Boolean;

begin
  //  This example assumes the Chilkat HTTP API to have been previously unlocked.
  //  See Global Unlock Sample for sample code.

  //  Insert your Bearer token here:
  accessToken := 'VOICEBASE_TOKEN';

  http := THttp.Create;

  //  Add the access (bearer) token to the request, which is a header
  //  having the following format:
  //  Authorization: Bearer <userAccessToken>
  sbAuth := TStringBuilder.Create;
  sbAuth.Append('Bearer ');
  sbAuth.Append(accessToken);
  http.SetRequestHeader('Authorization',sbAuth.GetAsString());

  strJson := http.QuickGetStr('https://apis.voicebase.com/v2-beta/media');
  if (http.LastMethodSuccess = False) then
    begin
      WriteLn(http.LastErrorText);
      Exit;
    end;

  //  The response should be JSON, even if an error.
  json := TJsonObject.Create;
  json.Load(strJson);
  json.EmitCompact := False;

  WriteLn('Response status code = ' + http.LastStatus);

  if (http.LastStatus <> 200) then
    begin
      WriteLn(json.Emit());
      WriteLn('Failed');
      Exit;
    end;

  //  See the sample JSON response below..

  //  Iterate over the JSON like this:
  dt := TCkDateTime.Create;
  dtObj := TDtObj.Create;

  mediaCount := json.SizeOfArray('media');
  i := 0;
  while i < mediaCount do
    begin
      json.I := i;

      WriteLn('-- ' + i + ' --');
      WriteLn('  mediaId: ' + json.StringOf('media[i].mediaId'));
      WriteLn('  status: ' + json.StringOf('media[i].status'));
      WriteLn('  contentType: ' + json.StringOf('media[i].metadata.contentType'));
      WriteLn('  milliseconds: ' + json.StringOf('media[i].metadata.length.milliseconds'));
      WriteLn('  descriptive: ' + json.StringOf('media[i].metadata.length.descriptive'));
      dateCreated := json.StringOf('media[i].dateCreated');
      dt.SetFromTimestamp(dateCreated);

      localTime := True;
      dt.ToDtObj(localTime,dtObj);

      WriteLn('  ' + dtObj.Month + '/' + dtObj.Day + '  ' + dtObj.Hour + ':' + dtObj.Minute);

      i := i + 1;
    end;

  WriteLn('Finished.');

  //  A sample JSON response:

  //  { 
  //    "_links": { 
  //      "self": { 
  //        "href": "/v2-beta/media"
  //      }
  //    },
  //    "media": [
  //      { 
  //        "mediaId": "26063536-FFFF-4020-93ba-0878112d834b",
  //        "status": "finished",
  //        "metadata": { 
  //          "contentType": "audio/x-wav",
  //          "length": { 
  //            "milliseconds": 85141,
  //            "descriptive": "85.0 sec"
  //          }
  //        },
  //        "dateCreated": "2017-01-19T16:49:32.000Z"
  //      },
  //      { 
  //        "mediaId": "8163fbbc-FFFF-4794-aa95-045420bb321d",
  //        "status": "finished",
  //        "metadata": { 
  //          "contentType": "audio/x-wav",
  //          "length": { 
  //            "milliseconds": 65342,
  //            "descriptive": "65.0 sec"
  //          }
  //        },
  //        "dateCreated": "2017-01-19T20:08:49.000Z"
  //      },
  //  ...
  //  ...
  //      { 
  //        "mediaId": "b01e27be-FFFF-4b62-8802-6dc66a75c4d3",
  //        "status": "finished",
  //        "metadata": { 
  //          "contentType": "audio/x-wav",
  //          "length": { 
  //            "milliseconds": 11581,
  //            "descriptive": "11.0 sec"
  //          }
  //        },
  //        "dateCreated": "2017-02-06T20:55:43.000Z"
  //      }
  //    ]
  //  }


  http.Free;
  sbAuth.Free;
  json.Free;
  dt.Free;
  dtObj.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.